Παραπομπή APA

(2002). Principles and methods for the assessment of risk from essential trace elements. World Health Organisation.

Παραπομπή Chicago Style

Principles and Methods for the Assessment of Risk from Essential Trace Elements. Geneva: World Health Organisation, 2002.

Παραπομπή MLA

Principles and Methods for the Assessment of Risk from Essential Trace Elements. World Health Organisation, 2002.